211122201 has 16 divisors (see below), whose sum is σ = 299714688. Its totient is φ = 131731200.

The previous prime is 211122157. The next prime is 211122211. The reversal of 211122201 is 102221112.

It is not a de Polignac number, because 211122201 - 2⁶ = 211122137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2205 + ... + 20666.

It is an arithmetic number, because the mean of its divisors is an integer number (18732168).

Almost surely, 2^211122201 is an apocalyptic number.

It is an amenable number.

211122201 is a deficient number, since it is larger than the sum of its proper divisors (88592487).

211122201 is a wasteful number, since it uses less digits than its factorization.

211122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23072.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 211122201 is about 14530.0447693736. The cubic root of 211122201 is about 595.4490887267.

Adding to 211122201 its reverse (102221112), we get a palindrome (313343313).

The spelling of 211122201 in words is "two hundred eleven million, one hundred twenty-two thousand, two hundred one".